Failed tests and disputed evidence

If a new test fails, does the failure concern the same endpoint as the earlier successful test?

Only if both tests measured the same endpoint, on the same material, by the same method.

A reported result describes only what the identified test found. That is why each report the company cites is named with its institution, and by its number where the report carries one. A report covers the article, the method and the conditions named in it.

Source: C-POLAR — Terms of Use, https://cpolar.tech/terms/; C-POLAR — Validation, https://cpolar.tech/validation/.

Reviewed on 21 September 2026.

Can a failed result be dismissed as laboratory error before that explanation is investigated?

No: a report is a record of what that laboratory measured.

A reported result describes only what the identified test found. Where two reports disagree, each is read against the material, the conditions and the method it names. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request.

Source: C-POLAR — Terms of Use, https://cpolar.tech/terms/; C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026.

Reviewed on 21 September 2026.

Does retesting the same sample answer a different question from testing a new sample?

Yes.

Retesting the same sample asks what that sample does on a second measurement. Testing a new sample asks what a different piece of material does. A reported result describes only what the identified test found. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request.

Source: C-POLAR — Terms of Use, https://cpolar.tech/terms/; C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026.

Reviewed on 21 September 2026.

Who chooses the laboratory for a disputed-result investigation?

The company has not published a rule for choosing the laboratory in a disputed case.

What it publishes is the record of who has tested the material, each report named by its laboratory and by its number where the report carries one; for example, Textile Testing Institute – Brno (TZÚ), Test Report AZL 26/0757-02, 3 July 2026, a laboratory accredited to ISO/IEC 17025, tested a MERV 15A filter medium under ISO 20743 and ISO 18184. For Harvard Medical School, Massachusetts General Hospital and the University of Minnesota, the citable record is the peer-reviewed paper: Gong, Or, Sze et al., Microbiology Spectrum 12(9), e0409723, American Society for Microbiology, September 2024, doi 10.1128/spectrum.04097-23. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request. A reported result describes only what the identified test found. A question about a particular product or market can be sent to [email protected] or +1 604 630 6830.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026; Textile Testing Institute – Brno (TZÚ), Test Report AZL 26/0757-02, 3 July 2026; Gong, Or, Sze et al., Microbiology Spectrum 12(9), e0409723, American Society for Microbiology, September 2024, doi 10.1128/spectrum.04097-23, https://journals.asm.org/doi/10.1128/spectrum.04097-23. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.

Can the customer observe how disputed samples are selected?

A customer can ask for the measurement to be repeated on any filter.

The charge is measured on every production run, and the measurement can be repeated on any filter, upon request. The polarity is a positive electric charge at rest. It is measured as surface charge density, in nanocoulombs per square centimetre. A reported result applies to the sample that was tested, under the conditions named in the report that recorded it and under its standard where the report names one. A question about a particular product or market can be sent to [email protected] or +1 604 630 6830.

Source: C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026.

Reviewed on 21 September 2026.

Is there a predefined rule for deciding between conflicting laboratory results?

The company publishes no rule that ranks one report above another.

Each report is read against the material, the conditions and the method it names. A reported result describes only what the identified test found. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request.

Source: C-POLAR — Terms of Use, https://cpolar.tech/terms/; C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026.

Reviewed on 21 September 2026.

Does a failed field test trigger review of claims based only on laboratory data?

A field measurement and a laboratory test measure different things, and the company keeps them apart.

The Validation page reports laboratory testing separately from its field observations, which are measurements taken at working sites with MicronView’s 405 nm Bio-fluorescent Air Monitoring System. Results in a building depend on the system, the airflow, and how well the filter fits its track. Air that passes around a filter is not treated by it. The Terms of Use state that the evidence, specifications, instructions and warnings to rely on are those specific to the actual finished product and use.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; NanoFlashing™ Air Filter label; C-POLAR — Terms of Use, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Can a successful average result conceal failures in a subset of supplied lots?

An average across lots is not a statement about a single lot.

The charge is measured on every production run, and the measurement can be repeated on any filter, upon request. A reported result describes only what the identified test found.

Source: C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026; C-POLAR — Terms of Use, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Would a method change explain the disagreement without showing that either report was fraudulent?

Yes.

Two reports written to different methods measure different things. A reported result describes only what the identified test found. Each numbered report the company cites is named with its institution and number, so that the method behind it can be read. The Validation page names the standards it refers to, ASHRAE 52.2 Appendix J and ISO 16890, and the conditions tested.

Source: C-POLAR — Terms of Use, https://cpolar.tech/terms/; C-POLAR — Validation, https://cpolar.tech/validation/.

Reviewed on 21 September 2026.

What evidence would justify narrowing a claim instead of withdrawing the product?

The company publishes no procedure for narrowing or withdrawing a claim.

A reported result describes only what the identified test found. A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it. Construction, processing, storage, wear, cleaning, other components, and actual use may change the result. The Statement of Regulatory Status records how the company applies Article 3 of Regulation (EU) No 528/2012 to the filter. It addresses that question only, and it states no efficacy data.

The Statement of Classification makes the same point for the United States: it addresses the classification question only, and it states no efficacy data.

Source: C-POLAR — Terms of Use, https://cpolar.tech/terms/; C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026; NF Technical Products Inc. — Statement of Classification for NanoFlashing™ Air Filter.

Reviewed on 21 September 2026.

Can sales continue while a material test discrepancy remains unresolved?

This site sells no products, and the decision to ship or hold a finished product belongs to its manufacturer and seller.

The Site does not sell products or accept orders. The manufacturer and seller of a finished product are responsible for its design, manufacture, labeling, instructions, claims, sale, and warranty, except for a responsibility C-POLAR expressly accepts in a Separate Agreement. Every commercial NanoFlashing™ product is made by a manufacturing partner, in their facility, in their format. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request.

Source: C-POLAR — Terms of Use, https://cpolar.tech/terms/; C-POLAR — About, https://cpolar.tech/about/; C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026.

Reviewed on 21 September 2026.

Who decides whether a failure affects stock already delivered?

The manufacturer and seller of the finished product decides what happens to stock already delivered.

The manufacturer and seller of a finished product are responsible for its design, manufacture, labeling, instructions, claims, sale, and warranty, except for a responsibility C-POLAR expressly accepts in a Separate Agreement. The Site does not sell products or accept orders. Every commercial NanoFlashing™ product is made by a manufacturing partner, in their facility, in their format. For a device produced in the United States, the records that identify a consignment are kept under 40 C.F.R. § 169.2: the brand name, the consignee’s name and address, the originating carrier, and the date and quantity shipped. NanoFlashing™ is a technology; the name, rating and sale of a product that carries it are set by that product's maker and seller.

Source: C-POLAR — Terms of Use, https://cpolar.tech/terms/; C-POLAR — About, https://cpolar.tech/about/; 40 C.F.R. § 169.2, as published on eCFR.

Reviewed on 21 September 2026.

Does the investigation include storage and transport deviations before testing?

The company publishes no investigation procedure, and the Terms of Use state that storage may change a result.

A test of C-POLAR material, a component, or a prototype does not establish the performance of a finished product that incorporates it. Construction, processing, storage, wear, cleaning, other components, and actual use may change the result. The company's label states the storage directions for the filter: “Store flat or on edge in the original packaging, indoors and dry, away from direct sunlight and moisture. Do not stack loads on the media.” It also directs: “Do not install a filter whose media is torn, crushed, wet or visibly damaged.” The Validation page also lists storage and heat among the conditions tested: after 2 years of storage, and after 60C for 64 days.

Source: C-POLAR — Terms of Use, https://cpolar.tech/terms/; NanoFlashing™ Air Filter label; C-POLAR — Validation, https://cpolar.tech/validation/.

Reviewed on 21 September 2026.

Can a customer obtain the final investigation report even if no defect is confirmed?

A customer can ask for the record behind any answer the company gives, and the request is reviewed.

The company holds its statements for the air filter and the reports and certificates named on the Validation page. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request. A question about a particular product or market can be sent to [email protected] or +1 604 630 6830.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026.

Reviewed on 21 September 2026.

Would discovery of a spreadsheet error require review of every claim derived from that calculation?

Yes.

Anything that rests on a calculation has to be read again if the calculation is wrong. Each numbered report the company cites is named with its institution and number, so that the calculation behind it can be read against the report. A reported result describes only what the identified test found.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Can a supplier identify other reports produced with the same faulty analysis template?

The company holds its reports by institution and identifier, and the Validation page names its air-filter and safety records the same way.

The identifiers the Validation page names with its wildfire smoke and ultrafine particle section are LMS Technologies, Report LMS#9904, 28 April 2025, a single-pass fractional efficiency test on a 24 × 24 × 2 in. pleated air filter in an ASHRAE 52.2 test duct, in accordance with standard LMS aerosol test procedures, and LMS Technologies, Report 6847, 5 November 2024, ASHRAE 52.2-2017 with Appendix J, on a 24 × 24 × 30 in. pocket filter; and Eurovent Certita Certification, Certificate No. 15.06.011. Report 6847 is on a 24 × 24 × 30 in. pocket filter and Certificate No. 15.06.011 on a ten-pocket bag filter, not on a flat panel filter, and a rating belongs to the construction that was tested and to the conditions in the report. The Product Safety Labs identifiers the Validation page lists are Study 65321, Study 65322, Study 65323 and Study 65324. A report can therefore be found by its number, and the other reports from the same institution identified with it. A question about a particular product or market can be sent to [email protected] or +1 604 630 6830. Certificate No. 15.06.011 can be looked up at source in the Eurovent Certita Certification certified product directory.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; Eurovent Certita Certification certified product directory, read 19 September 2026, https://www.eurovent-certification.com/. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.

Does a corrected report make the original error and its scope visible?

A report is the issuing laboratory’s document, and a correction to it is issued by that laboratory.

The company names each report with its institution, and with its number where the report carries one, so that a reader can see which document is cited and check it with the body that issued it. A reported result describes only what the identified test found. Among the certificates and reports it names are OEKO-TEX Service GmbH, Certificate 17.0.25812; Eurovent Certita Certification, Certificate No. 15.06.011; and Intertek Building & Construction, Report 105169484SAT-001. Both numbers can be checked at source: certificate 17.0.25812 in OEKO-TEX’s public label check, and Certificate No. 15.06.011 in the Eurovent Certita Certification certified product directory. Certificate No. 15.06.011 is on a ten-pocket bag filter, not on a flat panel filter, and a rating belongs to the construction that was tested and to the conditions in the report.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; OEKO-TEX Label Check, read 19 September 2026, https://www.oeko-tex.com/en/label-check; Eurovent Certita Certification certified product directory, read 19 September 2026, https://www.eurovent-certification.com/. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.

Can a claim be restored only after the corrective action is verified independently?

The company publishes no corrective-action procedure; the numbered reports it cites were issued by laboratories outside it.

The numbered pathogen reports include these. Guangdong Detection Center of Microbiology, Report 2020FM20686R01E, 13 August 2020, tested a nonwoven filter medium against influenza A virus (H3N2) under ISO 18184:2014. Textile Testing Institute – Brno (TZÚ), Test Report AZL 26/0757-02, 3 July 2026, a laboratory accredited to ISO/IEC 17025, tested a MERV 15A filter medium under ISO 20743 and ISO 18184. Instituto Valenciano de Microbiología, Report D/26/B0483, 6 August 2026, tested a VOLZ PROsyntex PLUS PM1 70 filter medium against Aspergillus brasiliensis and Aspergillus niger under ISO 13629-2:2014. For Harvard Medical School, Massachusetts General Hospital and the University of Minnesota, the citable record is the peer-reviewed paper: Gong, Or, Sze et al., Microbiology Spectrum 12(9), e0409723, American Society for Microbiology, September 2024, doi 10.1128/spectrum.04097-23. The charge is measured on every production run, and the measurement can be repeated on any filter, upon request. A citation, quotation, name, logo, link, or third-party test does not by itself mean that the third party sponsors, endorses, certifies, or approves C-POLAR, a C-POLAR product, a Site claim, or a proposed use. No authority has approved, registered or endorsed the filter.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, https://cpolar.tech/terms/; C-POLAR Technologies, Inc. — Statement of Regulatory Status for NanoFlashing™ Air Filter, 11 September 2026; Guangdong Detection Center of Microbiology, Report 2020FM20686R01E, 13 August 2020; Textile Testing Institute – Brno (TZÚ), Test Report AZL 26/0757-02, 3 July 2026; Instituto Valenciano de Microbiología, Report D/26/B0483, 6 August 2026; Gong, Or, Sze et al., Microbiology Spectrum 12(9), e0409723, American Society for Microbiology, September 2024, doi 10.1128/spectrum.04097-23, https://journals.asm.org/doi/10.1128/spectrum.04097-23. A copy may be made available on our review of the request.

Reviewed on 21 September 2026.

What happens if a laboratory withdraws its report after the product has launched?

A report belongs to the laboratory that issued it, and its status is the laboratory’s to change.

The company names each report with its institution, and with its number where the report carries one so that its status can be checked with that body. A reported result describes only what the identified test found. What is said about a finished product already on sale is the responsibility of its manufacturer and seller.

Source: C-POLAR — Validation, https://cpolar.tech/validation/; C-POLAR — Terms of Use, https://cpolar.tech/terms/.

Reviewed on 21 September 2026.

Does the company preserve unfavourable results when replacing a study with a newer one?

The company has not published a retention policy for study records.

What it publishes is the record it relies on: the Validation page names the institutions that tested the pathogens, and it names the air-filter and safety records by institution and number. A question about a particular product or market can be sent to [email protected] or +1 604 630 6830.

Source: C-POLAR — Validation, https://cpolar.tech/validation/.

Reviewed on 21 September 2026.